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  • 1 answers

Hariom Dalal 6 years ago

20 marks - one words one marks each. 15-20 marks - short type l 2 marks each. 3 marks 5 questions of short type ll. 10 marks long questions 5 mark of 2 questions. & Best of luck for exams?
  • 0 answers
  • 1 answers

Yogita Ingle 6 years ago

Let radius of sphere is 100 unit

now volume of sphere {tex}=4/3pi.(r)^3{/tex}

volume of sphere={tex}4/3pi.(100)^3{/tex}
=4/3pi.1000000 cubic unit

a/c radius increased by 10%

so , new radius =100+100x10/100=110unit

hence volume of new sphere=4/3pi(110)^3=4/3pi.1331000cubic unit

difference their volume=4/3pi.331000cubic unit

percentage increase=volume difference/volume of sphere
=(4/3pi.331000/4/3pi.1000000)x100
=33.1%

 

  • 1 answers

Yogita Ingle 6 years ago

Let the side of a cube = a cm

It is given that ,

Surface area of the cube = 1176 cm²

6a² = 1176

a² = 1176/6

a² = 196

a = √ 196

a = 14 cm

Therefore ,

Volume of the cube = a³

V = ( 14 cm )³

V = 2744 cm³

  • 2 answers

Pujan Patel 6 years ago

Yes

Anand Dwivedi 6 years ago

2cm because area of equilateral triangle is √3×S²/4 ;√3×S²/4=√3cm² ;S²/4=√3cm²/√3 ;S²/4= 1cm² ;S²=4×1cm² ;S²=4cm² ;√S²=√4cm² ;S=2cm
  • 2 answers

Vinod Kumar 6 years ago

Your social teacher is not good teach

Harsh Raj 6 years ago

Yes
  • 6 answers

Pratima Rai 6 years ago

(√3\4)a^2

Priyansh Vats 6 years ago

1/2 b.h

Anshman Modi 6 years ago

We also use Heron's furmula S=A+B+C/2 a=√a(s-a)(s-b)(s-c) Where S=semi peeimeter

Johnjam Jim 6 years ago

1/2×base×height
1/2×base×height

Mahima Pateriya 6 years ago

a/4√4a2-b2
  • 1 answers

Sam Samadder 6 years ago

no, 22/ 7is rational as it is in the form p/q where p,q are integers and q is not 0. 22/7 is an approximate value of pi
  • 2 answers

Snehu Pachauri 6 years ago

Muje plzzz starting se math padao me hardwork krne ko Ready hu

Hariom Dalal 6 years ago

To puccho na jo bhi doubt h. Hum yaha aaphi help ke liye hi to h, koi bhi doubt ho to sirf pucho. We all are with you. My best wishes, God bless you please par workhard . All the best ?
  • 1 answers

Mahima Pateriya 6 years ago

Here,we have ∆ ptq having base pq(6)cm and height 6 cm Therefore, area of ∆ptq= 1/2×base ×height = 1/2×6×6 =18cm2
  • 0 answers
  • 3 answers

Hariom Dalal 6 years ago

a is side & they have given correct information

Ayush Pathak 6 years ago

3a

Tulika Kashyap 6 years ago

A+ A + A

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